DDR2424Wrote 3167 days ago.Great LED chip for this prize - its very bright, so be carefull when you try to turn it on. Also use only good quality PSU - when i want to turn it on after first few hours tests i accidently use my old cheap ATX PSU (after turning it on it gets i think about 20V or more on 12V line) and it fried my LED :( But i was very satisfacted how bright this LED is so I alredy ordered second one.
It also produce good amount of heat and after 20mins of working whole heatsink (old HDD) was warm, but it may has about 30*C, so its not bad on passive cooling.
By foksa11/01/2018I was skeptical at first considering how cheap this light are, but they are great. Light is really bright. They do generate a decent amount of heat when running at full power but that is normal for this kind of LEDs. To use them to their full potential you will need a current limiting driver ( http://bit.ly/2vV29RT ) and a decent heatsink: http://bit.ly/2vUJPs7
By foksa25/12/2017I was skeptical at first considering how cheap this light are, but they are excellent. Light is really bright. They do generate a decent amount of heat when running at full power but that is normal for this kind of LEDs. To use them to their full potential you will need a current limiting driver ( http://bit.ly/2vV29RT ) and a decent heatsink: http://bit.ly/2vUJPs7